def __init__(self, lower_bound, upper_bound):
FloatStrategy.__init__(self)
self.lower_bound = float(lower_bound)
self.upper_bound = float(upper_bound)
assert upper_bound >= lower_bound
if lower_bound >= 0 or upper_bound < 0:
self.template_upper_bound = infinitish(
float_to_int(upper_bound) - float_to_int(lower_bound) + 1
)
else:
self.template_upper_bound = infinitish(
float_to_int(upper_bound) + (
MAX_NEGATIVE_FLOAT_AS_INT - float_to_int(lower_bound) + 2
)
)
def fact(n):
x = 1
for k in hrange(1, n + 1):
x = safe_mul(x, k)
if x >= EFFECTIVELY_INFINITE:
break
return infinitish(x)
def __init__(self, start, end):
SearchStrategy.__init__(self)
self.start = start
self.end = end
if start > end:
raise ValueError('Invalid range [%d, %d]' % (start, end))
self.template_upper_bound = infinitish(end - start + 1)
def __init__(self, start, end):
SearchStrategy.__init__(self)
self.start = start
self.end = end
if start > end:
raise ValueError(u'Invalid range [%d, %d]' % (start, end))
self.template_upper_bound = infinitish(end - start + 1)
def fact(n):
x = 1
for k in hrange(1, n + 1):
x = safe_mul(x, k)
if x >= EFFECTIVELY_INFINITE:
break
return infinitish(x)